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A distinctive PI(4,5)P2compartment forms during entosis and related engulfment processes
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A model of contractile vacuole
AIP Conference Proceedings, 2019A model for the transport of substances in the contractile vacuole has been constructed. The concentration ratios of ions inside and outside the vacuole obtained on the basis of the model are in qualitative agreement with experimental data. The estimation of the work that is necessary to complete vacuoles in one cycle is calculated.
S. G. Babajanyan +3 more
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Osmoregulation and contractile vacuoles of protozoa
2002Protozoa living in fresh water are subjected to a hypotonic environment. Water flows across their plasma membrane since their cytosol is always hypertonic to the environment. Many wall-less protozoa have an organelle, the contractile vacuole complex (CVC), that collects and expels excess water.
Yutaka Naitoh, Richard D. Allen
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Nature, 1921
IN connection with previous correspondence on the mode of production of the contractile vacuole in Protozoa (NATURE, vol. cvi., pp. 343, 376, 441), I find that it is, in point of fact, Prof. Marcus Hartog to whom the credit of the osmotic view is to be given. In a communication to the British Association in 1888 (Rep., p. 714) this observer pointed out
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IN connection with previous correspondence on the mode of production of the contractile vacuole in Protozoa (NATURE, vol. cvi., pp. 343, 376, 441), I find that it is, in point of fact, Prof. Marcus Hartog to whom the credit of the osmotic view is to be given. In a communication to the British Association in 1888 (Rep., p. 714) this observer pointed out
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Osmoregulatory Capacity of Contractile Vacuoles
Nature, 1948THE view that the contractile vacuoles of Protozoa in many cases perform an osmoregulatory function has been supported by much evidence1 which need not be repeated here. Recent observations carried out on the freshwater peritrich ciliate Carchesium aselli have demonstrated the remarkably close regulation of body volume which is achieved in spite of ...
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Contractile Vacuole Complexes in Algae
1984Contractile vacuoles are organelles which occur in many protists and some freshwater sponges. They are defined by their behaviour of slowly filling with fluid and periodically expelling this fluid from the cell (for review see Patterson 1980). Contractile vacuoles form one part of a more extensive organelle, the contractile vacuole complex.
D. J. Patterson, K. Hausmann
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The contractile vacuole and its membrane dynamics
BioEssays, 2000The contractile vacuole (CV) is an osmoregulatory organelle whose mechanisms of function are poorly understood. Immunological studies in the last decade have demonstrated abundant proton-translocating V-type ATPases (V-ATPases) in its membrane that could provide the energy, from proton electrochemical gradients, for moving ions into the CV to be ...
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Contractile Vacuoles of Protozoa
1956A contractile vacuole is a vesicle containing water and lying within the cytoplasm of the cell. It increases in volume, and finally discharges its contents to the outside. In many Protozoa there is a permanent position at which contractile vacuoles continually form, grow and discharge.
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